trigeminal nerve


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Related to trigeminal nerve: Cranial nerves, trigeminal neuralgia

trigeminal

 [tri-jem´ĭ-nal]
triple.
pertaining to the fifth cranial nerve (trigeminal nerve).
trigeminal nerve the fifth cranial nerve; it arises in the pons, is composed of sensory and motor fibers, and has three divisions: ophthalmic, maxillary, and mandibular. (See anatomic Table of Nerves in the Appendices.) The ophthalmic division supplies sensory fibers to the skin of the upper eyelid, side of the nose, forehead, and anterior half of the scalp. The maxillary division carries sensory impulses from the mucous membranes of the nose, the skin of the cheek and side of the forehead, and the upper lip and upper teeth. The mandibular division carries sensory impulses from the side of the head, chin, mucous membrane of the mouth, lower teeth, and anterior two-thirds of the tongue. (This nerve is sometimes called the great sensory nerve of the head.) The motor fibers are part of the mandibular branch and supply several of the muscles of chewing. Neuralgia of this nerve is the condition known as tic douloureux.
Areas of innervation by each of the three branches of the trigeminal nerve.

trigeminal nerve

n.
Either of the fifth pair of cranial nerves, being the chief sensory nerve of the face and the motor nerve of the muscles of chewing and having sensory and motor functions in the teeth, mouth, and nasal cavity. Also called trigeminus.

trigeminal nerve

Etymology: Gk, treis + geminus, twin
either of the largest pair of cranial nerves, essential for the act of chewing and general sensibility of the face. The trigeminal nerves have sensory, motor, and intermediate roots and connect to three areas in the brain. Also called fifth cranial nerve, nervus trigeminus, trifacial nerve, trigeminus.
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Trigeminal nerve
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Assessment of trigeminal nerve

trigeminal nerve

The 5th of the 12 pairs of cranial nerves and the sensory nerve of the face. Each trigeminal nerve divides into three main branches, the ophthalmic, the maxillary and the mandibular nerves, which then branch to supply the corresponding parts of the face.

trigeminal nerve

the fifth cranial nerve of vertebrates, usually possessing opthalmic, mandibular and maxillary branches.
References in periodicals archive ?
Most authors noted that finding an artery distorting the trigeminal nerve was a favorable prognostic factor.
He said that when odours stimulate both the trigeminal nerve and the olfactory nerve, the experience becomes much more intense.
The presumed cause of TN is a blood vessel pressing on the trigeminal nerve in the head as it exits the brainstem.
However, the nasal tip is spared because of its pure medial ethmoidal nerve innervation; yet, the surrounding nasal and medial cheek skin may be affected since they are innervated by sensory fibers from both the ophthalmic and maxillary divisions of the trigeminal nerve.
The electrodes passed currents about every 15 to 30 seconds to the trigeminal nerve, which extends into the brain from the face and forehead and can inhibit seizures.
Techniques to study potential health effects include multiple methods to study the impact of pollutants on the respiratory tract, including acoustic thinometry, nasal peak inspiratory flow, nasal scraping, nasal lavage, olfactory testing, and trigeminal nerve sensory acuity.
Using two targets on the trigeminal nerve during radiosurgery provides better intermediate-term pain relief of neuralgia than does the traditional method, according to data presented at the annual meeting of the American Association of Neurological Surgeons.
For persistent or recurrent pain, acupuncture (17), injection of phenol/glycerol (18) or botulism toxin (19), neurolysis (20), and root section (21) of the trigeminal nerve are methods that have been successfully employed to treat this condition.
Although it can involve one or more branches of the trigeminal nerve, the maxillary (V2) and mandibular (V3) divisions are the most commonly affected regions (Hickey, 2002).
Although scientists have seen such anatomy in other ichthyosaur fossils, Kear says that in this fossil, it's clear for the first time that the channels are associated with bony cavities that once housed branches of the trigeminal nerve.
Data Suggest Clinical Effects of OptiNose Sumatriptan Powder in Migraines Potentially Due to Blocking of Pain Signaling in Trigeminal Nerve

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